JPS57835A - Picture image indicator - Google Patents
Picture image indicatorInfo
- Publication number
- JPS57835A JPS57835A JP7511980A JP7511980A JPS57835A JP S57835 A JPS57835 A JP S57835A JP 7511980 A JP7511980 A JP 7511980A JP 7511980 A JP7511980 A JP 7511980A JP S57835 A JPS57835 A JP S57835A
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- electrode
- holes
- highly accurate
- thermal distortion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
- H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
- H01J31/126—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using line sources
Abstract
PURPOSE:To enable the formation of highly accurate holes while to prevent the thermal distortion, by making the thin board surface of same material with each electrode means to be insulative through chemical method while inserting a spacer formed with an insulative film. CONSTITUTION:First spacer 44 is located while tightly contacting between first grid 43 and first electron beam control electrode 45, while some points on the circumference are secured partially by a flit glass. The first spacer 44 is made of 42-6 alloy similarly with the first electrode 43, where holes of 250-350phi are made through etching then it is heated to high temperature of 800-900 deg.C and formed with an oxidation film. The second spacer 46 is located between the first and second control electrodes 45, 47 and secured similarly with the first spacer 44 while contacting tightly. Consequently highly accurate holes can be formed thereby an electrode structure which causes no thermal distortion can be produced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7511980A JPS57835A (en) | 1980-06-03 | 1980-06-03 | Picture image indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7511980A JPS57835A (en) | 1980-06-03 | 1980-06-03 | Picture image indicator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57835A true JPS57835A (en) | 1982-01-05 |
JPH0152858B2 JPH0152858B2 (en) | 1989-11-10 |
Family
ID=13566981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7511980A Granted JPS57835A (en) | 1980-06-03 | 1980-06-03 | Picture image indicator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57835A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6041742A (en) * | 1983-08-18 | 1985-03-05 | Matsushita Electric Ind Co Ltd | Picture display device |
CN1046600C (en) * | 1994-06-29 | 1999-11-17 | 冈谷电机产业株式会社 | Electric discharge type for surge absorption element and manufacturing method for the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4733454U (en) * | 1971-05-11 | 1972-12-14 | ||
JPS4822704U (en) * | 1971-07-23 | 1973-03-15 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4822704B1 (en) * | 1964-12-07 | 1973-07-07 |
-
1980
- 1980-06-03 JP JP7511980A patent/JPS57835A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4733454U (en) * | 1971-05-11 | 1972-12-14 | ||
JPS4822704U (en) * | 1971-07-23 | 1973-03-15 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6041742A (en) * | 1983-08-18 | 1985-03-05 | Matsushita Electric Ind Co Ltd | Picture display device |
JPH0430138B2 (en) * | 1983-08-18 | 1992-05-20 | ||
CN1046600C (en) * | 1994-06-29 | 1999-11-17 | 冈谷电机产业株式会社 | Electric discharge type for surge absorption element and manufacturing method for the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0152858B2 (en) | 1989-11-10 |
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